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酸化物を添加した硫酸水溶液における$$gamma$$線照射により誘起された水素生成

Hydrogen production in aqueous sulfuric acid solutions containing an oxide induced by $$gamma$$-ray irradiation

山田 禮司; 永石 隆二 ; 籏野 嘉彦; 吉田 善行

Yamada, Reiji; Nagaishi, Ryuji; Hatano, Yoshihiko; Yoshida, Zenko

$$alpha$$アルミナ,チタニア,ジルコニア,石英,シリカゲルなどの各酸化物の粉末を硫酸水溶液に混ぜた各試料にCo-60$$gamma$$線照射を行い、照射により誘起された水素生成量の硫酸濃度依存性、並びに酸化物の種類や添加濃度依存性を調べた結果、酸化物の添加により水素生成量は大きく増加するとともに特異な硫酸濃度依存性を示した。

Hydrogen production under $$gamma$$-ray irradiation in aqueous sulfuric acid solutions that contained oxide fine particles such as alpha-Al$$_{2}$$O$$_{3}$$, TiO$$_{2}$$2, ZrO$$_{2}$$, SiO$$_{2}$$ or SiO$$_{2}$$*nH$$_{2}$$O was investigated using Co-60 $$gamma$$-rays. The dependencies of sulfuric acid concentration, oxide species, and amount of added oxide powder on hydrogen production rate were studied. The experimental results show that the rate was strongly increased with the amount of added oxide powder, and that the rate exhibited each sulfuric acid concentration dependency peculiar to each oxide powder.

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